Abstract
A dense stand of Eragrostis curvula (Schrad.) Nees (Ermelo type) markedly decreases the Meloidogyne population of the soil. Although the nematode larvae can penetrate mechanically damaged roots of the grass, they do not enter the undamaged roots. No evidence could be found for the presence of a nematostatic or nematocidal agent emanating from the roots of E. curvula plants. It was shown that a dense stand of E. curvula drastically reduces the free oxygen concentration in the soil. Indications are that the low oxygen concentration is the direct and/or indirect cause of the death of the Meloidogyne larvae.
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